Patent GB-190500068-A (GB)
Title: Calculating Machines
Inventor: GOLDBERG HYMAN ELI
Filed: 1905-01-02
Granted: 1905-05-11
Abstract: 68. Goldberg, H. E. Jan. 2. Calculating-apparatus ; counting-apparatus.-In an adding-machine, capable either of forming a separate machine or of being operated by the numeral keys of a typewriter, a setting-wheel is driven proportionally to the value of the particular key of nine which is struck, the driving may be in either direction, whereby addition or subtraction are performed, and the machine is adaptable. to typewriters of various dimensions from which it may be disconnected so that it ceases to register at will, and it is provided with detent and alineing mechanisms. Figs. 2 and 3 show the machine in side and front elevation as applied to a typewriter 1, the parts being preferably contained in a separate framing 14, 15, and the keys 3 being connected by means of riders 5, links 7, and adjustable screw eyes 6 to the driving-sectors 4, which are spaced by collars 16 on their shaft 8. Each sector drives its pinion 17 on the shaft 19, and these are of such breadth that they are always in gear, notwithstanding lateral motion of their attached digit pieces 18, Fig. 17. During positive motion of a sector, its digit pinion 21 upon the shaft 22 is rotated to the proper amount by a segmental wheel 20 on the digit piece, which is, however, shifted out of engagement with the pinion during the return stroke by a fixed pin on the frame and the cam-groove 23, 26 of the digit piece into which it takes. The shaft 22 is thus always rotated in the same direction, and the means by which it drives the shaft 45 in either direction at will so as to add or subtract are as follows : the broad pinion 27 is always in gear with the wheel 28, Fig. 27, which is keyed, together with the crown wheels 29, 30, to a sleeve on the shaft 32, along which it can be slipped by means of the sliding piece 34 and its T-shaped extension 35 so that either crowu-wheel may gear with the pinion 33 on the shaft 45. The sliding piece moves on pins 37 in a bar 36, and has a forked end movable by a crank-pin on a spindle which can be rotated between stops by the reversing-lever 39. In order to permit of coupling the apparatus to machines of various sizes, the shaft 45 is journaled in a frame 46, 47, 48 which can be rotated into the required angular position about the shaft 32, and is provided with an adjustable coupler 51 for length ; the upper part of the shaft terminates in one element of a bevel-gear 52, 53, of which the second wheel is combined with a master-wheel engaging with the spur-wheel 60 of the required order in the totalizing-counter 59, which is mounted upon a fixed bar 55 and moved along it by the arm 57 attached to the paper-carriage. Locking is effected by cams on the digit pieces and spur-wheels on a locking-shaft which co-operate with the alining- pawls in the following way : Upon the shaft 61, Fig. 22, are similar four-toothed spur-wheels in two series 62, 63, the teeth of which are alternately placed, and these are so rotated and locked by the cam-surfaces 64, 65, 66, Fig. 14, that the pinion 67, Fig. 42, on the shaft 61 forces the detent 68 into the teeth of the pinion 69 at such times that the shaft 22 is unlocKed just before any digit pinion commences to rotate and is relocked just after the wheel 20 goes out of engagement with the pinion. Simultaneously with the locking and alineing of the shaft 69, the arm 70 of the detent rotates the lever 72, pressing the disk 74 against a pin on the pivoted lever 76, which carries a detent for alineing the wheel 33. A disconnecting-lever is shown in Fig. 3 for sliding a cylinder upon the shaft 32 sufficiently to carry the digit pinions and locking- wheels out of engagement with the wheels 20 and thus to disconnect the calculating part of the machine entirely. For this purpose, the cylinder is grooved to admit projecting parts on the corresponding shafts. When the calculating-apparatus is used apart from the printing - mechanism, arrangements of the kind used for spacing in typewriters are employed to effect the lateral movement of the totalizing-counter.